What will be the output of this Ruby code?

medium📝 Predict Output Q5 of 15

Ruby - Inheritance

class Parent
  def add(x, y)
    x + y
  end
end

class Child < Parent
  def add(x, y)
    super(x, y) * 2
  end
end

puts Child.new.add(3, 4)

AError: wrong number of arguments

C14

D10

Step-by-Step Solution

Solution:

Step 1: Trace the parent method call
The parent method add returns the sum of 3 and 4, which is 7.
Step 2: Apply the child's method logic
The child calls super(3, 4) which returns 7, then multiplies by 2, resulting in 14.
Final Answer:
14 -> Option C
Quick Check:
super returns parent result, child modifies it [OK]

Quick Trick: super returns parent result; child can modify it [OK]

Common Mistakes:

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